Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-e289f112-13f4-11f0-8ad2-000d3a02f775

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

a1e57ecd

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-8271171e-9fa2-457a-93bb-8ad60890c187

Comm: tcp://127.0.0.1:33569	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:46829	Total threads: 1
Dashboard: http://127.0.0.1:32951/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:46767
Local directory: /tmp/dask-scratch-space/worker-9_1ggfw9

Worker: 1

Comm: tcp://127.0.0.1:45285	Total threads: 1
Dashboard: http://127.0.0.1:34521/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:40893
Local directory: /tmp/dask-scratch-space/worker-o5_c2uxf

Worker: 2

Comm: tcp://127.0.0.1:41473	Total threads: 1
Dashboard: http://127.0.0.1:37229/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34793
Local directory: /tmp/dask-scratch-space/worker-sxkifs6g

Worker: 3

Comm: tcp://127.0.0.1:36465	Total threads: 1
Dashboard: http://127.0.0.1:45967/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:39279
Local directory: /tmp/dask-scratch-space/worker-ytohepov

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)